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Zoologie. Poissons du Nil. 1. Le Polyptère bichir (Polypterus bichir); 2. sa tête vue en dessus, 3. son squelette, 4. os de la nageoire, 5. les mêmes isolés, 6. myologie de la bouche, 7. viscères de l'abdomen, 8. l'estomac et le foie, 9. les deux vessies natatoires, 10. la mâchoire infèrieure.

Zoologie. Poissons du Nil. 1. Le Polyptère bichir (Polypterus bichir);...

Gray's Anatomy is a classic human anatomy textbook first published in 1858 by Henry Gray. The book, which is widely considered to be one of the most important and influential works in the field of anatomy, prov... More